Question

if sin theta + sin squared theta is equal to 1 then value of cos square theta + cos4 theta​

Answer 1

Answer:

Step-by-step explanation:

Sin theta+sin sq.theta=1

Sin theta=1- sin sq.theta

Sin theta=cos sq. theta

1 equation

Cos sq. theta+cos^4 theta=1

LHS,

Cos sq.theta+cos power 4

Sin theta+sin sq.theta(from 1 equation).

: hope this helps u